[PATCH 6/6] baseband/fpga_5gnr: don't use rand()

[Stephen Hemminger]

The function rand is very weak and should not be used.
Use the DPDK rte_rand() which is seeded from entropy instead.

Coverity issue: 414987
Fixes: b3d326e438f1 ("baseband/fpga_5gnr_fec: add FPGA mutex")
Cc: hernan.vargas at intel.com
Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
---
 drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c b/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
index efc1d3a7725b..9b253cde280d 100644
--- a/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
+++ b/drivers/baseband/fpga_5gnr_fec/rte_fpga_5gnr_fec.c
@@ -14,6 +14,7 @@
 #include <bus_pci_driver.h>
 #include <rte_byteorder.h>
 #include <rte_cycles.h>
+#include <rte_random.h>
 
 #include <rte_bbdev.h>
 #include <rte_bbdev_pmd.h>
@@ -1990,7 +1991,7 @@ fpga_5gnr_mutex_acquisition(struct fpga_5gnr_queue *q)
 {
 	uint32_t mutex_ctrl, mutex_read, cnt = 0;
 	/* Assign a unique id for the duration of the DDR access */
-	q->ddr_mutex_uuid = rand();
+	q->ddr_mutex_uuid = rte_rand();
 	/* Request and wait for acquisition of the mutex */
 	mutex_ctrl = (q->ddr_mutex_uuid << 16) + 1;
 	do {
-- 
2.43.0